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发明授权
CN101613207B 一种精炼钢包用低碳刚玉尖晶石砖及其制备方法 有权 转让

一种精炼钢包用低碳刚玉尖晶石砖及其制备方法
摘要：
为解决现有含碳耐火材料技术中的碳含量过高的不足，本发明提供一种精炼钢包用低碳刚玉尖晶石砖及其制备方法，其组分按重量百分比配比如下：电熔刚玉颗粒60～70％，电熔镁砂颗粒2～6％，电熔刚玉细粉10～20％，电熔镁砂细粉2～10％，电熔尖晶石细粉5～15％，α-Al2O3微粉3～6％，金属铝粉细粉0～2.0％，金属硅粉细粉0～2.0％，结合剂2～6％，超细石墨1～2％，钛白粉2～6％。本发明在高温下热稳定性好，耐高温，耐钢水和渣的侵蚀，而且机械强度高，热震稳定性好，荷重软化点高，可广泛应用于各种钢包，尤其是精练低碳钢和超低碳钢钢包。
摘要（英）：

The invention relates to a low-carbon corundum spinelle brick for refined steel ladles and a preparation method thereof for overcoming the defect of overhigh carbon content in the prior carbon-contained fireproof material technology. The low-carbon corundum spinelle brick for refined steel ladles comprises the following components in percentage by weight: 60-70 fused corundum particles, 2-6 fused magnesite particles, 10-20 fused corundum fine powder, 2-10 fused magnesite fine powder, 5-15 fused spinelle fine powder, 3-6 alpha-Al2O3 micro powder, 0-2.0 metal aluminum fine powder, 0-2.0 metal silicon fine powder, 2-6 bond, 1-2 superfine graphite and 2-6 titanium white powder. The invention has good thermal stability at high temperature, resists high temperature and the erosion of molten steel and slag and has high mechanical strength, good thermal shock stability and high under-load softening point, thereby being widely applied to various steel ladles, in particular to steel ladles of refined low-carbon steel and ultra-low-carbon steel.

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